What Does SIM Stand for on a Cell Phone? What Does SIM Stand for on a Cell Phone? What Does SIM Stand for on a Cell Phone? September 15, 2016 By: Chris Blank Most mobile phones used in Europe, as well as many in the United States, run on the system called Groupe Speciale Mobile, or Global System for Mobile Communications (GSM). These phones require a SIM card in order to operate. This is in contrast to the Code Division Multiple Access (CDMA) system, which is common to mobile phones in the United States and do not use SIM cards. Definition of SIM Cards SIM is an acronym that stands for Subscriber Identity Module. SIM cards contain the subscriber information of the individual mobile phone user and identify the user to the network. SIM cards may also contain applications and personal data, such as stored telephone numbers. They are usually about the size of a thumbnail and are inserted into the mobile phone. SIM Cards on Unlocked Mobile Phones An unlocked phone is not operational without a SIM card. However, any GSM-compatible SIM card may be used with an unlocked phone. Personal data such as telephone numbers may be stored on the SIM card or on the phone itself.

The operational data for the phone is stored on the SIM card. SIM Cards on Locked Mobile Phones A locked mobile phone will often be supplied to the customer with the SIM card already installed and programmed. While the SIM card can be physically removed from a locked mobile phone, the phone will not operate without it. It is not possible to substitute another SIM card into a locked phone unless it is unlocked by the carrier or by unlocking software. SIM Cards Versus Re-Usable Identification Module (R-UIM) Cards CDMA mobile phones do not use SIM cards. However, Re-Usable Identification Module (R-UIM) cards have been used in China since 2002. This technology works on a similar principle as SIM cards. As of 2009, development is underway to make R-UIM cards available in the United States, to make interchangeability for CDMA mobile phones possible. Considerations for Travel People who travel to many different destinations may have several SIM cards, which allow them to use a single unlocked mobile phone with their stored phone numbers and to obtain a local telephone number wherever they are.

Multiple-band GSM-network mobile phones can often be used overseas, whether locked or unlocked, although international roaming charges for locked mobile phones can be prohibitively high. Network bands for GSM phones are 850 and 1900, widely used in North and South America, and 900 and 1800, widely used in Europe. Tri-band mobile phones usually carry the 850, 1800 and 1900 bands, while quad-band mobile phones carry all four bands. Prepaid Sim Card | Unlocked Phone Sim Cards | BYOD | T-Mobile Can I choose any prepaid plan? You can choose the plan of your choice, but all phones and SIM cards purchased from 1-800-TMOBILE or online at T-Mobile.com come activated with a Pay As You Go plan with 30 minutes of talk or 30 texts (or any combination of the two that adds up to 30 ) to get you started. If you would like a different plan than Pay As You Go , you can compare prepaid plans and then call 1-877-778-2106 or dial 611 from your T-Mobile phone to switch.

How do I unlock my device? If you have a T-Mobile device it does not need to be unlocked. If your device is from another carrier, you will need to contact your carrier to get directions on how to unlock your device to work on the T-Mobile network. How do I bring my phone, tablet or hotspot to T-Mobile? The steps are simple: 1) Select the right 3-in-1 SIM card for your GSM or LTE device. Phones require a 3-in-1 SIM Starter Kit. Tablets and hotspots require a 3-in-1 Data SIM Starter Kit. 2) Check out. 3) upon installation of SIM into device, Refill to stay on the Pay As You Go plan or choose a different plan by dialing 611 from your T-Mobile phone, calling 1-877-778-2106 , or visiting a T-Mobile store. Store locator What is a SIM card? Do I really need a new one? It stands for Subscriber Identity Module. Each SIM card has a unique serial number which needs to be activated before you can use it in a new device, but it’s super-fast and super-easy.

If you are bringing a device to T-Mobile that has been on another carrier’s network, you will need a new SIM that is specific to T-Mobile. How do I know what kind of SIM card will work with my device? The T-Mobile 3-in-1 SIM Starter Kit fits all GSM phones. The T-Mobile 3-in-1 Data SIM Starter Kit fits all compatible GSM and LTE tablets, hotspots and mobile internet devices. Can I bring other devices like laptops or mobile hotspots to T-Mobile? Yes, if your device has a cellular radio in it that is compatible with T-Mobile’s network, you can use it. Refer to the device manufacturer’s website for details. If you have questions, take your device to the nearest T-Mobile store and we’ll be happy to help you. Still have questions? Contact a specialist today! 1-877-778-2106 Please note: in order to connect to T-Mobile’s LTE network, your device must operate on Band 2, 4, or in certain areas, Band 12.

For 3G or other 4G service, your device must operate on Band II (1900 MHz) or IV (1700/2100 MHz). GSM devices that do not support these bands may operate at 2G (EDGE) speeds. Check with your device manufacturer . if you’re not sure which bands your device operates. If you need help determining whether your device is compatible, please call our customer care line at 1-800-866-2453 or visit a T-Mobile store. Device unlocking: Check your warranty and contract with your carrier to see what conditions apply to unlocking your device. General Terms: Coverage not available in some areas. Network Management: Service may be slowed, suspended, terminated, or restricted for misuse, abnormal use, interference with our network or ability to provide quality service to other users, or significant roaming. Customers who use an extremely high amount of data in a bill cycle will have their data usage de-prioritized compared to other customers for that bill cycle at locations and times when competing network demands occur, resulting in relatively slower speeds. See T-Mobile.com/OpenInternet for details. SIM - What does SIM stand for?

The Free Dictionary SIM - What does SIM stand for?

The Free Dictionary Subscriber Identity Module (ETSI GSM technical specification) SIM Sistema Interamericano de Metrologia (Inter-american Metrology System) SIM Servicio de Inteligencia Militar (Spanish: Military Intelligence Service; various locations) SIM Society for the Internet in Medicine SIM Surat Izin Mengemudi (Indonesian driving license) SIM Service Impact Manager (BMC Software) SIM Systèmes d'Information et Management (French) SIM Serialized Item Management (US DoD) SIM Source Independent Measurement (acoustical or electronic systems) SIM Servizio Informazioni Militari (Italian: Military Intelligence Service; 1925-1945; Italy) SIM Service d'Informatique Médicale (French: Medical Informatics Service; Switzerland) SIM Security Identity Module (cell phone usage) SIM Service Impact Management (BMC software) SIM Société Immobilière de Mayotte (French: Public Estate Agency of Mayotte; France) SIM Service d'Intervention Sur Mesure (French: Service Tailored Interventions) SIM Services in the Internal Market SIM Society for the Increase of the Ministry SIM Skochinsky Institute of Mining (Russia) SIM Scientific Instruments Module (Apollo program) SIM Section of Integrative

 Medicine (Albuquerque, NM) SIM Service Ingénierie des Matériaux (French: Service Engineering Materials) SIM Servizio Informazione Segreto (Italian Secret Service in WWII) SIM Salon International du Meuble (French: International Furniture Fair) SIM Système d'Informations Marketing (French: Information System Marketing) SIM Syrasoft Internet Manager (Syrasoft LLC) SIM Service Identification Methodology (Service Oriented Architecture) SIM Source Interlink Media (Bonita Springs, FL) SIM Silhouette Intimate Moments (now Silhouette Romantic Suspense) SIM SIM Staff for Installation Management (US Army) Want to thank TFD for its existence?

Tell a friend about us , add a link to this page, or visit the webmaster's page for free fun content . Link to this page: Write what you mean clearly and correctly. References in periodicals archive ? In the past too, Samsung has launched dual SIM version of its flagship smartphones exclusively for the Chinese audience. Moral ambiguity in Darkness Visible Sim was drafted by the Stars and after shuttling between Dallas and the minors for five seasons - he never played more than 26 games with the Stars in a season - he was traded to Nashville, where he played in just four games. Copyright © 2003-2017 Farlex, Inc Disclaimer All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. 28 Comments What exactly is a SIM card? You know, the little piece of plastic found in the metal pullout on the right side of your iPhone or cellular iPad?

The short answer: it's a Subscriber Identity Module, a small circuit board in most modern phones to communicate with your carrier. Practically speaking, it is a middleman between two pieces of hardware: the phone's baseband chip, and your carrier's cell towers, allowing the two to communicate. SIM cards allow you to travel between phones with your phone number and data plans; when you upgrade to a new iPhone, the SIM card travels (as long as it is the same size). But while SIM cards themselves may be portable, they only work in certain phones. We'll explain why in a bit. A SIM card is internationally identified by its Integrated circuit card identifier (ICC-ID), which is engraved on the body of the card. It is also identified by the carrier with its International mobile subscriber identity (IMSI). Essentially, these two numbers tell the carrier that your phone is allowed to operate on its network and, once connected, should be billed for certain features. Beyond identification, SIM cards have several other functions. What is a SIM card? SIM cards have evolved a lot over the years.

While they have maintained a relative thickness of just under 1mm, their surface area has steadily decreased, from the credit card-sized plates used in the earliest cellphones to the nanoSIMs of today's devices. The nanoSIM is the SIM card's fourth size standard since its inception. Designated as 4FF, or fourth form factor, it measures 12.3mm x 8.8mm x 0.67mm, a reduction of over 42 times from the SIM's inception. Most people, however, are more familiar with the 2FF SIM card, known more readily as the Regular SIM card. At 25mm x 15mm x 0.76, it is 3.4 times larger than today's current SIM cards, which offer the same features in a much more compact package. Some manufacturers still choose to use the microSIM format which, at 15mm x 12mm, is only slightly larger than the nanoSIM. Many carriers offer branded SIM cards with cutouts for all three modern sizes, so users can choose which version they want to insert depending on their device.

There are also adapters so nanoSIM cards can fit into slots meant for microSIM or Regular SIM cards. How does a SIM card work? Often, a SIM card is provided with the purchase of a phone by your carrier and it is used to store data about your account. Because it has a small amount of memory and a very low-powered processor, the SIM card not only enables communication between the phone and its carrier, but stores information such as phone numbers, security data and more. In recent years, carriers have begun using specialized SIM cards with so-called Secure Elements to store credit card credentials in order to facilitate mobile payments. Bonus Tip: SIM cards are transferrable. If your iPhone runs out of power and you desperately need to make a call or connect to the internet, you can just swap the SIM into another iPhone and use it with your minutes and data bucket. What are the benefits of a SIM card? SIM cards are the unseen magicians of today's smartphones. They make connecting to networks and switching phones as easy as removing a small metal tray. If you buy a new phone, you can simply insert your existing SIM and keep on using your existing service as long as the new phone isn't locked to a different carrier.

Likewise if you travel internationally you can just buy a SIM card from a local carrier — as long as your phone isn't locked to a carrier. What are the drawbacks of a SIM card? SIM cards are fairly simple. They have practically no function without an accompanying smartphone and are increasingly reliant on third-party apps to address functionality, such as connecting to multiple networks or using more than one phone number. And because they are simple pieces of plastic, their benefit is largely subject to the will of the carrier. If you buy a phone that is locked to one carrier, putting a different carrier's SIM requires an unlock code, which is often expensive to obtain and confusing to enter. Typically the SIM lock is in exchange for a subsidized phone (so you can't buy a cheap phone on one carrier then switch over an use another before you've paid back the subsidy over the life of your contract). These days, Apple sells the iPhone SIM-unlocked in most countries, including the U.S., Canada and the U.K. While customers have to pay more upfront for an unlocked version of the iPhone, they can use the phone with any compatible SIM card, as long as the phone works with that carrier's network.

The latest iPhone, the 6s, supports 23 LTE bands, which comprises most of the world's carriers. What is Apple SIM? In 2014, alongside the iPad Air 2 and iPad mini 4, Apple unveiled Apple SIM, a way for the company to assert some control over its devices' connection to various carriers. By working with select providers in the U.S. and U.K., Apple SIM allows iPad owners to connect to whichever network they want — provided that telco has worked with Apple. In the U.S., those carriers include Sprint and T-Mobile; in the U.K., EE. The beauty of Apple SIM is its ability to interface with multiple networks; when visiting foreign countries, partners GigSky, AlwaysOnline Wireless and au work with local providers to offer per-day or per-megabyte bundles. Most recently, with the 9.7-inch iPad Pro, Apple began embedding its Apple SIM in its tablet line, allowing the use of both Apple's partner networks as well as local carriers, such as AT&T and Verizon in the U.S.

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Posted: 21-01-2015 @ 19:34:38 Rubina The difference between a dual ACTIVE sim and a dual STANDBY sim cellphone is in the ease in switching sim cards. In the dual ACTIVE sim cellphone, the user can easily change from sim1 to sim2 in one press of a switch. User can return to sim1 again by just pressing the switch sim key again. But in the dual STANDBY sim cellphone, the user has to do the following: 1. User presses switch key to change from sim1 to sim2; 2. User has to specify that the new default sim is sim2; 3. Cellphone will show message that the change in default sim will restart the phone, and asks for a confirmation from the user; 4. Once the user confirms, cellphone restarts, and user waits for the cellphone to become ON again; 5. Once the cellphone is ON, user can use the cellphone using sim2. In case the user wants to change back from sim2 to sim1 again, the user has to go through the above-mentioned steps once more. Thus, a dual ACTIVE sim cellphone is more convenient to use.

Posted: 05-05-2012 @ 15:29:11 narwariya Dual SIM Phones Supporting Dual Standby: It was very normal for one cell phone to accommodate a piece of SIM card. However, that happened before. Since the birth of dual SIM dual standby mobile phones, one SIM cell phones will be out of date soon. Dual SIM dual standby mobile phones satisfy with the needs and requirements of one machine more SIM cards to many businessmen in the fast-paced commercial society. You can insert two SIM cards (some cell phones have even 3 SIM card slots) into one cell phone, and the two SIM cards are on line simultaneously, needless to switch between them. Surely, if you only want one of them is on line, you can set it in menu, as dual SIM dual standby mobile phones support four modes (dual SIMs, SIM1, SIM2, Flight mode). Besides, most dual SIM dual standby phones at onThesource.com support dual Bluetooth, you can phone and listen to music via Bluetooth devices.

Posted: 02-05-2012 @ 15:58:52 vivek9999 dual standy means that a mobile having dual sim can operated at the same time by a single mobile,dual sim allows the use of two services without the need to carry two phones at the same time & dual active means that it allows the device to be connected to both netwoks at the same time (it's using transceiver). Posted: 08-11-2011 @ 20:36:25 gopi28 DUALSIM mobile phones are fitted with 2 SIM CARD slots allowing DUALSIMTM operation of the phone. Mobile phones with DUALSIM Card capability have the advantage of allowing both SIM cards to be active simultaneously and allow calls to be received on either number, unlike adapters that require you to switch between phone numbers. Normal GSM phones contain a single transceiver; DUALSIMTM phones have DUAL TRANSCEIVERS and display SIGNAL STRENGTHS for both networks. A phone with a single transceiver cannot be converted to simultaneous DUALSIM operation; at best you can only store both cards in an adaptor and manually switch between phones.

The use of aftermarket adaptors in SINGLE transceiver phones could void the warranty of the phone and are not guaranteed to work on all phone models. Posted: 25-08-2011 @ 16:02:16 it means dual sim active in one time Posted: 11-08-2011 @ 15:45:49 jinu A dual SIM mobile phone is one which holds two SIM cards. Initially, dual-SIM adapters were made available to use in regular mobile phones to allow them to contain two SIMs, and to switch from one to the other as required. This combination is called a standby dual-SIM phone. The first Dual SIM mobile phone was Benefon Twin manufactured by Benefon in Finland. It was launched on the market in 2000. More recently, some phones have been produced that can natively work with two SIMs, both of which may be active at the same time. These are active dual-SIM phones.

There are also some Chinese triple-SIM phones.[1] Akai Trio is the first phone with triple GSM SIM slots [2] Dual-SIM operation allows the use of two services without the need to carry two phones at the same time. For example, the same handset can be used for business and private use with separate numbers and bills; or for travel, with an additional SIM for the country visited. Using multiple SIM cards allows the user to take advantage of different pricing plans for calls and text messages to certain destinations as well as mobile data usage. Posted: 10-08-2011 @ 18:56:49 Gtbitja dual standby means both the sim will be active in your mobile .if your mobile has dual sim. the call will be come in both the numbers in dual standby mode. one active means only one sim is active at one time. means one sim is working at one time and other sim is not working Posted: 10-08-2011 @ 11:18:20 dual standby and dual active both are same. dual standby means both sims are active in same time. in this case changing the primary sim is not required.

Posted: 10-08-2011 @ 11:13:42 Akbvamp Dual standby and dual active mode allows you to keep on two different services at a time for ex- you can set dual sin active mode in your dual sim phone , you can set dual network standby mode in your 3g phone which keep your 2g as well as 3g/UMTS mode on. One active only allows to keep one service active. Posted: 09-08-2011 @ 23:34:52 ashif pa Dual sim active means u can Operate 2 sims at one time in a single mobile.. U will receive 2 different signals, u can call from any of the sim/server, u can receive cals,messages on one cell at the same time.

one active means u can operate one sim at a time.one sim active at a time ,two sims not active at a time Posted: 09-08-2011 @ 22:49:19 GSM Cell Phone With Dual SIM Card Slot - Cell Phones - Cell Phone General Discussion GSM Cell Phone With Dual SIM Card Slot> GSM Cell Phone With Dual SIM Card Slot Tags: December 17, 2013 4:11 PM in Cell Phone General Discussion September 27, 2013 9:27:02 AM First of all, let me state that I know close to nothing about cell phones. I might be interested in purchasing a quad-band (GSM), dual-SIM card cell phone. The idea is that if I have to travel to a European country I could purchase a second SIM card there and install it in the cell phone. Questions: 1) What are the caveats about purchasing such a phone? For instance: Will the cell phone monitor incoming calls to either SIM card phone number? What about using SIM cards from two different providers? 2) Where would I find an online site that has tested and recommends particular brands/models?

Paramount for me, besides cost, is voice quality, ease of setup and use. (I only need a phone that handles voice and text, so I am not looking for a smart phone.) 3) How do I know if a phone for sale is a smart phone or a standard cell phone? For instance, is this a "regular" cell phone or a smart phone? http:// 4) Can you recommend a basic cell phone with the characteristics that I mentioned? More about : gsm cell phone dual sim card slot JackNaylorPE September 27, 2013 9:39:57 AM Mt Treo 650 had dies after 7 years of usage and one of the things I used to do with that was just yank my SIM .... not for the reasons you state but because it was an expensive smart-phone, when id be boating or mountain biking I didn't want to carry it with me. So when ever doing something risky ..... to my phone, not me .....Id pop my SIm into a cheap $29.99 phone and take that..... Manufacturers have since however tried to make that process particularly difficult.

m September 27, 2013 10:53:14 AM tb75252 said: First of all, let me state that I know close to nothing about cell phones. I might be interested in purchasing a quad-band (GSM), dual-SIM card cell phone. The idea is that if I have to travel to a European country I could purchase a second SIM card there and install it in the cell phone. Questions: 1) What are the caveats about purchasing such a phone? For instance: Will the cell phone monitor incoming calls to either SIM card phone number? What about using SIM cards from two different providers? 2) Where would I find an online site that has tested and recommends particular brands/models? Paramount for me, besides cost, is voice quality, ease of setup and use. (I only need a phone that handles voice and text, so I am not looking for a smart phone.) 3) How do I know if a phone for sale is a smart phone or a standard cell phone? For instance, is this a "regular" cell phone or a smart phone? http:// 4) Can you recommend a basic cell phone with the characteristics that I mentioned? 1.

This article answers most of the questions you will have about dual sim. LINK 2. Chinavasion Has a lot of dual sim phones at good prices. 3. The link to the phone you provided is for a non smart phone the only way to tell is by reading if it says it is Android, Apple, or Blackberry then it is smart if it does not mention a operating system then it is non smart. 4. I can recommend several Can't find your answer ? Ask ! Get the answer December 17, 2013 4:11:25 PM tb75252 said: First of all, let me state that I know close to nothing about cell phones. I might be interested in purchasing a quad-band (GSM), dual-SIM card cell phone. The idea is that if I have to travel to a European country I could purchase a second SIM card there and install it in the cell phone. Questions: 1) What are the caveats about purchasing such a phone? For instance: Will the cell phone monitor incoming calls to either SIM card phone number? What about using SIM cards from two different providers?

2) Where would I find an online site that has tested and recommends particular brands/models? Paramount for me, besides cost, is voice quality, ease of setup and use. (I only need a phone that handles voice and text, so I am not looking for a smart phone.) 3) How do I know if a phone for sale is a smart phone or a standard cell phone? For instance, is this a "regular" cell phone or a smart phone? http:// 4) Can you recommend a basic cell phone with the characteristics that I mentioned? The issues are as follows some providers do not like gsm amd some like cdma others like diffrent frequencys most providers can tell you what frequency they like m No Contract Activation Portal Frequently Asked Questions What is this site? Best Buy Mobile Solutions offers exclusive deals and the best pricing available on mobile phones, plans and accessories. This site is designed to offer a simple and convenient way to activate your new no-contract phone. Who owns and operates this site? This site is owned and operated by Best Buy Mobile Solutions. Purchases of products and other business dealings and interactions on this website are made through Best Buy Mobile Solutions, and any subscription for services is from the identified carrier.

Any submission of information you provide while on this site is governed by the Best Buy Mobile Solutions Privacy Policy . What is a no-contract phone? A no-contract phone is a phone you can purchase without having to sign a two-year agreement. No credit check is required, and no signatures are necessary to receive service. No-contract phones offer the same services as those requiring a two-year agreement (i.e. postpaid plans), but they allow you to change your service without having to pay extra charges or fees. No-contract phones are available with by-the-minute, by-the-month, or unlimited talk, text, messaging and web/data plans. What is the difference between postpaid and no-contract plans? The main difference between postpaid and no-contract plans is the time at which you pay your bill. With postpaid plans you pay after you use the service and you’re billed accordingly for overages on minutes, messaging and data. With no-contract plans you pay before you use the phone — whether that’s for a monthly plan or a by-the-minute plan. If you go over on your allotted minutes, you will be billed instantly at the time of use.

For example, if your monthly plan costs $25 per month and you keep a balance of $10 in your account, but you go over your allowed data package, you will be billed based on the MBs used and that charge will be taken out of your remaining $10 balance. If you use all $10 in your account, you won’t be able to use data on your phone until you add more money to your account or until you pay your next monthly bill. When do I select a rate plan for my no-contract phone? You will be able to select a rate plan when you activate your no-contract phone. However, you can change this rate plan at any time without penalty. How do I activate my no-contract phone? For your convenience, you may now activate your no-contract phone online by clicking here . Please refer to your order shipped email or the Activation Guide that was included with your phone for additional activation instructions. You may also contact a Best Buy Mobile Solutions Specialist at 1-877-702-2211 (6 a.m. to midnight CT), or by sending an email to support@bbymsolutions.com .

What information do I need to activate my no-contract phone? The information required to activate your no-contract phone is dependent on both your phone type and your selected carrier. In most cases, you will need access to your phone in order to successfully complete activation. Please refer to your carrier below for additional FAQs specific to your carrier. Boost Mobile What is a SIM card? A SIM card (Subscriber Identity Module card) is used to store personal information on your device. It also identifies your device on the carrier network and contains your SIM ID. Note:: Not all phones require a SIM card. What is a SIM ID? A SIM ID (SIM card identifier) is a 15- to 20-digit number that is printed on the back of your SIM card. To find your phone’s SIM ID, follow the instructions below. Find your phone. Remove your phone’s battery. Remove your phone’s SIM card. SIM ID is printed on the back of your SIM card. What is a Serial Number? A Serial Number (also labeled SN, S/N or IMEI) is an 8- to 20-digit number that uniquely identifies your device. It may contain a combination of letters and numbers, but cannot contain special characters.

To find your phone’s Serial Number, follow the instructions below. Find your phone. Remove your phone’s battery. Serial Number (also labeled SN, S/N or IMEI) is printed inside your phone’s battery compartment. What is an Activation PIN? An Activation PIN is included in every new phone package or starter kit. Your Activation PIN is printed on the card your SIM card is pulled from. What is an MEID or ESN? An MEID (Mobile Equipment Identifier) or ESN (Electronic Serial Number) is an 8- to 18-digit serial number that uniquely identifies your device. It can contain numbers or letters, and may be labeled MEID, ESN or DEC. To find your phone's MEID or ESN, follow the instructions below. Find your phone. Remove your phone's back cover. Remove your phone's battery. MEID (also labeled ESN, DEC or DECESN) is printed inside your phone's battery compartment. MetroPCS What is a SIM card? A SIM card (Subscriber Identity Module card) is used to store personal information on your device. It also identifies your device on the carrier network and contains your SIM ID. Note: Not all phones require a SIM card. What is a SIM ID?

A SIM ID (SIM card identifier) is a 15- to 20-digit number that is printed on the back of your SIM card. To find your phone’s SIM ID, follow the instructions below. Find your phone. Remove your phone’s battery. Remove your phone’s SIM card. SIM ID is printed on the back of your SIM card. What is an IMEI? An IMEI (International Mobile Equipment Identity) is a 14- or 15-digit number that uniquely identifies your device. It may contain a combination of letters or numbers, but cannot contain special characters. To find your phone’s IMEI, follow the instructions below. Find your phone. Remove your phone’s battery. IMEI is printed inside your phone’s battery compartment. What is an MEID or ESN? An MEID (Mobile Equipment Identifier) or ESN (Electronic Serial Number) is an 8- to 18-digit serial number that uniquely identifies your device. It can contain numbers or letters, and may be labeled MEID, ESN or DEC. To find your phone's MEID or ESN, follow the instructions below. Find your phone. Remove your phone's back cover. Remove your phone's battery.

MEID (also labeled ESN, DEC or DECESN) is printed inside your phone's battery compartment. What is a UPC Number? A UPC (Universal Product Code) Number is the 12- or 13-digit number included in a device's UPC bar code. It can only contain numbers and is printed on the box your device came in. Important: Be sure to include all digits printed below the UPC bar code, including digits to the left and right of the bar code. T-Mobile Prepaid What is an IMEI? An IMEI (International Mobile Equipment Identity) is a 14- or 15-digit number that uniquely identifies your device. It may contain a combination of letters or numbers, but cannot contain special characters. To find your phone’s IMEI, follow the instructions below. Find your phone. Remove your phone’s battery. IMEI is printed inside your phone’s battery compartment. What is a SIM ID? A SIM ID (SIM card identifier) is a 15- to 20-digit number that is printed on the back of your SIM card. To find your phone’s SIM ID, follow the instructions below. Find your phone. Remove your phone’s battery. Remove your phone’s SIM card.

SIM ID is printed on the back of your SIM card. What is an Activation Code? An Activation Code is an 11- to 15-digit number that is used to identify and activate your T-Mobile Prepaid device. Your Activation Code is printed on the Activation Card that was included with your phone’s packaging. Virgin Mobile What is an MEID or ESN? An MEID (Mobile Equipment Identifier) or ESN (Electronic Serial Number) is an 8- to 18-digit serial number that uniquely identifies your device. It can contain numbers or letters, and may be labeled MEID, ESN or DEC. To find your phone's MEID or ESN, follow the instructions below. Find your phone. Remove your phone's back cover. Remove your phone's battery. Unlocking Instructions: Samsung NCK= Network Unlock Code (The one that you use) FREEZE = Unfreeze Code for Samsung DEFREEZE = Unfreeze Code for Samsung MCK = Unfreeze Code for Samsung Provider = Provider Unlock (Secndary lock rare) If you receive Unlock Code in the follow format. Here is the explanation.

SAMSUNG USA/EUROPE/CANADA (FOR METROPCS READ BELOW) Submit: IMEI: 357360030287087 Result: NETWORK=48275379 PROVIDER=18592938 SUBPROVIDER=91709809 DEFREEZE=06158509 Explanation: Your Unlock Code: 48275379 (Ignore rest of codes) Read This First * With the provided Unlock codes, if you are receiving "Code Error" or "Sim Network Unlock Unsuccessful, DO NOT WORRY! proceed to the "Trouble Shooting" section on how to proceed. * Make sure "Airplane Mode" and "Wi-Fi" is turned off under wireless connections if your Samsung is an Android device. * Video proof will be required if the Unlock code does not work, it's a good idea to film it so we can help trouble shoot what the problem is. We may also offer you a discount off your original purchase amount if you can provide us with a video of successfully unlocking your device. Just ask us!

How to enter unlock codes on all Samsung models Different phones have different Unlock Code Input Instructions, Try the following Instructions in order: Note: Non Accepted Simcard is any simcard not from the original provider Method #1 Insert a Non accepted simcard in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code OR Method #2 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc) Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code) OR Method #3 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc) Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code) OR Method #4 (NOT applicable for newer Samsung phones, ie.

Galaxy S3, S4, S5, Note 2, Note 3, etc) Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code. When this method is used for newer Samsung phones, it will say "unsuccessful" regardless of the phone being unlocked or not. If Phone says, "Code Accepted" or "Network Unlock Successful" or "Not Yet Personalized" your phone is fully Unlocked *If you are not receiving any signal after unlocking, make sure your wireless connections are turned on after unlocking the phone. Also pull the battery and restart phone. How do I know my phone's network is fully unlocked? For Samsung devices 2011 and newer: Please insert a sim card not from the original carrier. If it does not ask for the code anymore, it is 100% unlocked. For Samsung devices 2010 and older (Galaxy S and older): Go to the dial screen on your phone, and press *#7465625# A menu will be displayed that will resemble the following... 1.

[ ] Network lock Follow these steps carefully. 1. Power off and on your phone with different network sim card. "SIM network unlock PIN" or "Enter Network Lock Control Key" screen will appear. 2. Type your Defreeze code (MCK code) and hit Unlock button. You will get "unsuccessful message" again but don't worry. 3. Now type the Unlock code (Network or NCK code) and hit Unlock button. *If phone say "Network Lock Succesful" it worked, but if not, proceed to step 4. 4. If you get "unsuccessful" again then hit Dismiss button and type *2767*3855# on phone keypad. (CAUTION! This will reformat all your data!) 5. After phone restarts, type the Unfreeze code (MCK code) when prompted to enter "SIM network unlock PIN" or "Enter Network Lock Control Key" screen and hit unlock button. It will say "unsuccessful" again, don't worry! 6. Type the Unlock code (Network or NCK code) and hit Unlock button. 7. Your phone should now give you the message "Network Lock Successful" Now your phone is successfully unlocked!

*If this is not working, go to Solution #3 Solution #3 1. Turn off the Wi-Fi on your phone and then turn device ON without SIM card. Once it's on go to phone dial screen and DIAL: *7465625*638*# it will bring you to the NETWORK LOCK screen. - in MCC/MNC field enter code for the service provider your phone is originally from (eg 31026 for T-Mobile USA) check here for list of codes: *If your network has more than one mcc/mnc please try all of them this is very important - in CONTROL KEY field enter the UNLOCK code - hit OK - you should get a message: LOCK SUCCESSFUL Power phone down, insert SIM card you want your phone to work with and power on. "Phone Freeze" message. - What do I do? Phone freeze is a result of the incorrect code being inputted incorrectly too many times, which means your Samsung device is Hardlocked. You will require a Defreeze code and a Network Code to Unlock your phone. * If you received multiple codes from us in the format below, use the Phone freeze instructions above.

Example: NETWORK=xxxxxxxx; PROVIDER=xxxxxxxx; SUBPROVIDER=xxxxxxxx; DEFREEZE=xxxxxxxx * If you received a Single code from us, you only have the network code. If you are receiving the "phone freeze" message, you will require a Defreeze code from one of the manufacturer methods. You can contact us directly regarding this. Phone will ask for the Network lock code Enter it as you have received it Phone will be unfreeze and unlocked I can make calls and text but I'm not getting internet/data service. In this case you will need to adjust what's called the APN settings. The APN settings vary depending on the service provider you are trying to use. Please contact your service provider and they can assist you setting this up. There is no separate unlock for data or internet. If you can call or text, your phone's network is fully unlocked.

Model: A107, A137, A167, A177, A227, A237, A437, A517, A707, A767 Propel, A837 Rugby, A798 Mythic, A867 Eternity, A887 Solstice, C417, E250, E370, E590, F400, F480, F490, G600, i907 Epix, J700, L760, S366, T309, T319, ST349, T409, T429, T439, T459 Gravity, T469, T509, T609, T639, T659, T669, T919 Behold, T929, U900, X497, Z105, Z107, Z560. 1.

Turn ON your phone without Sim Card 2. Type #7465625*638*CODE# (CODE is the Unlock Code I sent you) 3. Device should say "Network Lock Deactivated" 4. The phone may reboot and the unlock is completed Model: SGH-A127, SGH-E840, SGH-F210, SGH-J600, SGH-T749 1. Turn ON your phone without Sim Card 2. Type #0111*CODE# (CODE is the Unlock Code I sent you) 3. Device should say "Network Lock Deactivated" 4. The phone may reboot and the unlock is completed 1. Insert an Authorized Sim Card and turn ON your phone 2. Device must be in Portrait mode. Hit the Dial button on the touch screen. 3. Type #7465625*638*CODE# (CODE is the Unlock Code I sent you) 4. Device should say: “Network Lock Deactivated” 5.

Phone may automatically reboot Model: A737, A777, Blackjack SGH-i607, SGH-i616, SGH-i617, SGH-i627, SGH-i637, SGH-A877 1. Insert an Authorized Sim Card and turn ON your phone 2. Type #7465625*638*CODE# (CODE is the Unlock Code I sent you) 3. Device should say: “Network Lock Deactivated” 4. Phone may automatically reboot NOTE: If you are unable to connect to service provider or unable to make outgoing calls or receive messages, this has nothing to do with your phone being locked or not, you need to force the Blackjack to change to GSM mode, this can be done as follows: 2. Select Option 3 Network & Call Settings 3. Select option 5 Network Mode 4. Select GSM 5. This should resolve your problem. Model: AT&T / Cingular BlackJack 1. Insert an Unauthorized Sim Card and turn ON your phone 2. Power on the device.

Wait approximately 30 seconds until the Sim Lock application appears (the delay may be longer if the user has already attempted an unlock with the wrong code) 3. Enter the unlock code in the blank field 4. Press Ok. If the Unlock Code is incorrect, an error dialog will appear. After pressing Ok on this dialog, the user has to re-enter the Unlock Code after delays (see above in Device Specific Information). If the Unlock Code is correct, a success dialog will appear. 5. Press Ok 6. The device is now unlocked and should continue booting Or 1. Insert an Unauthorized Sim Card 2. Enter Unlock code when prompted NOTE: If you are unable to connect to service provider or unable to make outgoing calls or receive messages, this has nothing to do with your phone being locked or unlocked, you need to force the BlackJack to change to GSM mode, this can be done as follows: 1. Power on your Phone 2. Type *#1546792*# 3. Select Option 3 Network & Call Settings 4. Select option 5 Network Mode 5. Select GSM Or 1.

Power on without Sim Card, you will see a message saying "SIM Failure" at the top of the screen. 2. Click "Done" then press the green button to get into the dial pad. Type in #7465625*638* 3. You will see "Enter Network Control Key" 4. Enter Unlock Code 6. Your phone is now unlocked Model: Fido i616 Jack 1. Insert Fido Sim Card and power ON 2. Type #7465625*638* 3. Network Lock Screen appear, enter Unlock Code 4. Phone is now unlocked Model: i450 & i560 1. Turn ON your phone without Sim Card 2. Type #PW+Unlock Code+1# The letter P appear after you press star button (*) three times quickly The letter W appear after you press the star button (*) four times quickly The letter + appear after you press the star button (*) two times quickly Model: i780 1. Insert an Unauthorized Sim Card and turn ON your phone 2. Enter the PIN code to Sim Card 3.

At the top of screen an "exclamation mark" icon will appear 4. Click on "exclamation mark" icon 5. Settings Link will appear 6. Click on it 7. Virtual keyboard appears on screen with Enter PIN prompt 8. Enter Unlock Code 1. Make sure Wireless Mode is ON 2. Insert an Unauthorized Sim Card and turn ON your phone 3. Enter the PIN code of this refused Sim Card 4. Now should ask for Unlock Code 5. Enter Unlock Code Unlock Code is enter as: #0149*MCK# or #0111*NCK# 1. Press the # button on the keypad 1 time to display # 2. Type the 4 digit code which corresponds to your lock type (in most cases the MCK code will work with code:1) 3. Press the star (*) button on the keypad 1 time 4. Enter Unlock Code which corresponds to your lock type 5. Press the # button on the keypad 1 time 6. Phone should now be unlocked 7.

If phone is still locked, you have a 2nd lock activated so please check locks and enter 2nd code Model: SGH-P207 1. Reset to original factory setting by typing *2767*3855#, your phone will reboot 2. Insert an unauthorized Sim Card and turn ON your phone 3. A Wrong Sim message will appear 4. Enter * #9998*3323# 5. Exit white screen appear, tap the right soft key, (occasionally it will not go to the next screen, if so press the down key) 6. Menu appear, scroll down to the malloc Fail option, this will reboot, and normal service screen will appear 7. Enter *0141# and press the green Call key 8. Personalized screen appear, the name of the current Sim Card provider will appear on the screen 9. Turn phone OFF, and then turn back ON 10. Go to menu by tapping left soft key 11. Settings is in bottom right hand corner 12. Select option 7 = Security 13. Select option 6 = Sim Lock 14.

Select option 1 = Disable 15. Enter 00000000 (eight zeros), the message will come up Sim lock disabled with a check mark; your phone is now unlocked to use with other carriers. PHONE FREEZE: SIM Unavailable 1. Insert an Unauthorized Sim Card and turn ON your phone so phone displays "Phone Freeze, SIM unavailable. Please contact service provider" 2. Enter MCK (Defreeze Code) and press "OK", "Confirm" or the center button (no digits will be seen on display when entering this code) 3. Now phone will ask you for Network Code, enter NCK (Unlock Code) and press OK. 4. If nothing happens when you enter NCK (Unlock Code), you will need to compose code like this: #7465625*638*CODE# (CODE is the Unlock Code I sent you) 5. Now your phone should be unlocked. Note.

If phone does not accept NCK (Unlock Code), and still have no luck with #7465625*638*CODE# (CODE is the Unlock Code I sent you), please try step 4 using MCK (defreeze code) To solve "Phone Freeze" or "Return for service problem" 1. Insert an Unauthorized Sim Card and turn ON your phone 2. Enter "Defreeze" Code (it will not be visible) and click OK key. (If you purchased our Samsung Factory method, then the "Freeze Code" is also known as Defreeze Code) How To Turn A Micro sim Card into a Regular Sim Card and Back Again - YouTube How To Turn A Micro sim Card into a Regular Sim Card and Back Again Want to watch this again later? Sign in to add this video to a playlist. Need to report the video? Sign in to report inappropriate content. The interactive transcript could not be loaded. Loading... Rating is available when the video has been rented. This feature is not available right now. Please try again later. Published on Aug 26, 2010 Please visit my brand new website.

We've been working really hard on it lately and could really use your support Hey guys, well since i was on an iphone 4, which uses a micro sim card and i just recently bought the samsung captivate which uses a regular sim, i needed an adapter if i ever wanted to use the captivate as a phone Category

Question: In a mobile phone, for what do the letters SIM, as in SIM card, stand?
Answer: SUBSCRIBER IDENTITY MODULE